BMI-for-Age Percentile Calculator (CDC)
Calculate BMI-for-age percentile for children and teens aged 2–20 using CDC growth chart reference data.
Input Parameters
Enter details for calculation.
BMI
Expert Tip
CDC growth charts are the standard reference in the US. WHO charts are used internationally for children under 5. Always use age-sex specific percentiles for children.
Calculation Methodology & Details
Formula
Percentile categories: Underweight < 5th, Normal 5th–84th, Overweight 85th–94th, Obese ≥ 95th. This calculator provides an approximate percentile based on simplified CDC reference values.
Important Disclaimer
The calculations provided are for educational and general informational purposes only. They do not replace professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider.
How BMI-for-Age Percentile Works
Follow these steps to use this calculator:
Enter Age, Sex, Weight, Height
All four values are needed for percentile calculation.
Read BMI & Percentile
View the approximate percentile ranking and weight status category.
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ℹ️ About this Calculation
This health calculator provides accurate anthropometric assessment and body composition metrics. Designed for clinical evaluation, fitness tracking, and physiological monitoring based on validated health guidelines.
Variable Glossary
Body Measurements
Height, weight, circumferences, or fold measurements recorded following standardized clinical protocols.
Anthropometric Indexes
Key physiological ratios and thresholds used to evaluate body fat distribution and medical classification.
How to Calculate Step-by-Step
Step 1
Enter your exact physical measurements into the designated fields.
Step 2
Select appropriate measurement units (Metric or Imperial) and demographic parameters if applicable.
Step 3
Review your computed index, category classification, and recommendations instantly.